According to Nimród Antal and Robert Rodriguez on the commentary, in the script, the character Cuchillo was described as "a guy who looks like Danny Trejo." When Danny Trejo heard this, he called Robert Rodriguez and said, "hey, I heard there's a guy in the script for 'Predators' who looks just like Danny Trejo, and guess what, I look just like Danny Trejo!"
Hanzo is missing two fingers on his left hand. The reason that the Yakuza traditionally cut their fingers starting from the left pinkie, is that these fingers have a vital role in controlling a Japanese sword, and their loss would significantly impair a duelist. Hanzo must be a formidable swordsman to be able fight in close combat as he did, despite the loss of his fingers.
The plant that Edwin (Topher Grace) identifies as "Archaefructus liaoningensis" has actually been extinct for several million years; its origin lies in the Cretaceous Period. Angiosperm fossils were found in China, that are believed to be about one hundred twenty-five million years old, making it the world's earliest known flowering plant. In an earlier draft of the script, Edwin highlights the plant's origins, citing it as yet another inexplicable oddity, before they finally realize where they are.
The original script contained cameo appearances by Dutch (Arnold Schwarzenegger) and Michael Harrigan (Danny Glover), the protagonists of the previous Predator films. However, these appearances were ultimately cut out.
Nimród Antal specifically chose Adrien Brody for the main protagonist: "It was a challenge in finding a balance. When we cast Adrien, there were a lot of people going, What? But at the same time, if we cast a Vin Diesel in that role or anyone who is Arnold-esque, we would have been attacked for doing that. So we decided early on to go in a very different direction as far as the casting process, but it turned out fantastic." He also felt the soldiers should be portrayed as wiry tough guys, not burly men, like Arnold Schwarzenegger.
The pool with the overhanging rock, where the group ends up after the jump from the cliff, was found in Texas, during location scouting. However, when the scene was shot a few months later, the temperature had dropped considerably, and water had started to flow from the rock. Not only did the actors have to be submerged in freezing cold water, the noise from the waterfall made the recording of usable dialogue impossible.
The film's basic plot was conceived in 1994, when Robert Rodriguez was working on Desperado (1995). He presented a draft of the script to 20th Century Fox, but they turned it down, because the budget required was too large. Fifteen years later, the studio decided to follow through with his script; in the end, an updated version of his script.
According to Robert Rodriguez, the title of "Predators" serves as a double-entendre, describing the alien hunters as well as the ensemble human characters they target: "They could very well kill each other off, even if there were no Predators!"
One indication that the Predators have been using the hunting grounds for a very long time, is when they first come into the Predator camp (just before they see the classic Predator on the totem pole), there is a Neanderthal skull next to a human skull on the ground as a trophy. The Neanderthal subspecies became extinct forty thousand years ago.
(At around fifty minutes) The Insectoid Alien that appears is an allusion to the original design of the Predator from the first film, when it was played by Jean-Claude Van Damme. The creature was redesigned after Van Damme's departure, to the current design.
The song that plays over the credits is Little Richard's "Long Tall Sally", which was listened to by the main characters of Predator (1987) on the helicopter before they're dropped into the jungle for their mission.
According to Robert Rodriguez on the DVD commentary, Walton Goggins had been cast in the role of Stans, but Rodriguez felt the character was written far too much like the character Hudson in Aliens (1986). So Rodriguez had the part re-written, and asked Director Nimród Antal to re-cast the role. But Antal insisted that Goggins could still do the role, and scheduled a meeting between Goggins, Rodriguez, and him. Within a very short period of time, Rodriguez was convinced that Walton was right for the part.
Unlike other Predators, who hunt for honor and for trophies, in the script the Super Predators hunt for DNA to become more powerful hunters. This was later dropped from the film, where the Super Predators still hunt to improve themselves, but also for sport. The theme of Predators looking for the best DNA to modify themselves with would finally feature in the sequel The Predator (2018).
At the point Noland (Lawrence Fishburne) is introduced, you hear the lines "Over Here" and "Turn Around". These lines are spoken by Bill Duke to Carl Weathers in the first Predator movie. The lines are either a nod to the original movie, or represent the Predator's ability to record and transfer sounds and data between themselves in real time, as the first Predator didn't survive, to do this himself.
The man whose parachute fails to open is wearing pixel-gray Army Combat Uniform fatigues, meaning he was most likely a soldier in the United States Army. The same goes for the unidentified man found later with his chest ripped open: Nikolai reads from the man's notebook that he was supposed to be stationed in Afghanistan.
Royce, Isabelle, Nikolai, and Noland are the only people to say their names in the film. Stans, Mombasa, Cuchillo, Edwin, and Hanzo's names are never revealed (although Stans identifies himself in a deleted scene). The DVD captions identify all characters.
It is safe to assume that the Super Predators do not follow the Yautja Honor Code, as they do not demand fair fights: removing their armor and equipment before engaging in hand-to-hand combat with their adversary. Instead they attack their enemies as brutally as possible, killing them in a very merciless manner.
Nikolai was originally supposed to be armed with a Russian GShG-7.62 four-barreled rotary machine gun, as it would be more fitting for a Russian Spetsnaz Operator. The production crew was unable to obtain one, so they used an American M134 minigun instead.
The River Ghost's role was reduced in the final film, compared to earlier drafts: it was originally supposed to play a more substantial part in the film, stalking the characters for longer and leading them to believe it was the one responsible for their being on the planet. In another draft of the script, the creature was originally to have been found near a river and was barely seen, behaving almost like a ghost or apparition (it was from this draft that the creature earned its moniker). The River Ghost was initially conceived as a means to display the original, unused Predator design created for Predator by Boss Film Studios, although it was later decided to make the creature a completely original design. Despite this change of direction, the creature still bears some similarities to the original Predator design, most notably in the appearance of its head and its digitigrade legs.
The Tracker Predator, also referred to as the "Flusher Predator" and nicknamed "Tusky" by fans, after the two curved tusks jutting from his mask, is one of the main Super Predators introduced in the 2010 film Predators and is part of a new breed of Predators that are at a clan war with the mainstream Predators. The Tracker Predator was portrayed by actor and stuntman Carey L. Jones.
Isabelle uses a Blaser R93 sniper rifle, fitted with an Elcan DigitalHunter scope. The official sniper rifle for active-duty Israeli Defense Forces personnel, is actually the H-S Precision HTR, and it achieved that designation in May 2010, only a month before this movie was released.
Shortly after being hired as the director, Nimród Antal was informed that the movie will be scrapped because the script wasn't deemed good enough. Antal was then given two screenwriters and ten days to write a new story outline from scratch in their basement. According to Antal, by the end the place was such a mess and smelled so bad that the Predators' camp in the movie was heaven in comparison.
In Decloaking the Invisible: Alien Terrain (2010), it can plainly be seen that stunt performers were used for the cliff fall scene, in most of the shots, if not all of them, that were actually used in the movie. This is especially true for Edwin's fall. This was done by a professional, and he still accidentally landed mostly on his head.
While often addressed as the Tracker Predator, he is also sometimes addressed as the Flusher Predator after his role in the film to "flush out" the humans with the creatures he controls: the Predator hounds or hunting dogs.
Stans is a death row inmate in California's San Quentin Correctional Facility. All death row inmates can receive a pardon, or stay of execution by the state's Governor. At the time this film was made (and presumably the time the movie takes place), California's Governor was Arnold Schwarzenegger, the star of Predator (1987).
The Super Predators are larger than normal Yautja, as can be seen when Berserker fights the Crucified Predator. However, in reality, actors Brian Steele and Carey Jones, who portray the Super Predators, are actually shorter than previous Predator actors -- Steele and Jones stand around 6'7", while Ian Whyte is 7'1" and Kevin Peter Hall was 7'2".
In the prequel motion comic, the Crucified Predator is seen being hunted at the waterfall by Falconer and Berserker. The Yautja attempts to fight and escape but gets captured by the more numerous Super Predators and is strung up onto the totem structure.
Despite the fact that Stans has some psychopathic tendencies, he doesn't appear to be an actual psychopath. As he claims he just killed his victims for no reason and not for revenge or out of insanity, though this was in a deleted scene. Behavior wise, he was able to work well with the others, only fighting before meeting the group and when wanting a weapon better than a shiv, believing he needed a gun to increase his chances of survival.
Mombasa Mahershala Ali is a Muslim, as revealed early in the film when he performs the Salat (daily prayer) while the group takes a break in the scene where Royce notes that the sun has not moved since arrival. In real life, Ali is a Muslim himself.
The Super Predators could possibly take some kind of drug or some sort of other enhancement which could explain their larger figures over the already masculine mainstream Yautjas. As what exactly makes these Predators "super" hasn't yet been revealed but it could simply be due to them being a sub-species to the "normal" Predators.
After Adrian Brody cuts the predator down and the ship starts to take off you see the ground and either Mack's skull from Preadator 1987, or one identical. Anna did say in the 1987 movie that the predators go there a lot. Maybe one found and took Mack's skull.
The original, rejected script had the Predators riding motorbikes and drinking alien beer while watching matches in a Coliseum-like arena. Furthermore, there would originally have been 200 Predators in the movie. Nimród Antal, a big fan of the franchise, found these ideas preposterous and had them changed. He reasoned that a single Predator posed a dangerous threat in the previous films, so it would be unreasonable for any of the human characters to survive dealing with hundreds of them. Basic ideas that were kept throughout included the story taking place on an alien world and six out of the eight human characters getting killed.
Hanzos final fight with the Falconer Predator is a homage to the scene in the original film where Billy challenges the Jungle Hunter to a one-on-one knife fight. Unlike the original scene however the fight is shown and Hanzo is victorious but at the cost of his own life.
Even though this installment in the "Predator" franchise explicitly wanted to part with the crossover AVP story arc, it does contain at least three nods to the Alien franchise: - 1) at one point, while (obviously, given the movie's universe) facing near-certain death, one character tells another "If the time comes, I'll do us both", a reference to Hicks' almost identical line in Aliens (1986), 2) when the group finds the body of an earlier victim of the antagonists, he has a large hole in his chest with the ribs bent outwards (probably from a Predator energy blast shot from behind), referencing the way Xenomorph young emerge from their host, and the wound found on the "space jockey" in Alien (1979), also Nikolai references Billy's dialogue from Predator (1987), "he set up position here, he was shooting in all directions" 3) as soon as Royce recovers from his parachute landing; as he looks around, a music motif from Aliens (1986) can be heard, and when the group enters the Predators camp, there's a brief view of an Alien skull on the ground. Additionally, when realizing that the Classic Predators may be helpful against the Super Predators, Royce mentions 'my enemy's enemy', which references the 'enemy of the enemy is my friend' concept from Alien vs. Predator (2004).
The way Nikolai kills the Tracker Predator is somewhat ironic, seeing as self-destruction is the Predators' preferred way of dealing with an opponent when they're about to be killed. That being said, it is not revealed whether Super Predators follow this technique like their smaller cousins or not.
The film has many nods and references to Predator (1987): The characters find themselves in a jungle, and many of the musical cues are the same. Nikolai's weapon is a M134 minigun. Mombasa stares at a tree because he is convinced there is something in it (which is correct). Isabelle knows of Major Alan "Dutch" Schaffer's deadly encounter with a Predator in the jungle of Guatemala which occurred 23 years earlier and mentions it to Royce. Noland uses the lines "Over here" and "Turn around". Isabelle angrily shouts "You set us up!" to Royce. Hanzo holds off The Falconer Predator by taking a stand and fighting him in armed combat, and dies. One Predator rips out Stans' skull and spine, like Billy's; and Royce covers himself in cold mud in his fight with the Berserker Predator. The end credits feature the song "Long Tall Sally" which was also used in the first film.
Series trademark: As Nikolai (Oleg Taktarov) is dying, he shouts "What an ugly face you have!" in Russian to the Predator. This extends a running joke in the franchise of someone insulting the Predator's looks, which started with Arnold Schwarzenegger calling the creature "one ugly motherfucker" in Predator (1987).
At about 26 minutes when the humans are attacked by four-footed creatures, the humans fire dozens if not hundreds of rounds of ammunition despite just learning they are on an alien planet with little hope of replenishing their bullets.
The traps used are all very similar to the ones used by the original special forces group in Predator,so similar that they could indicate that at least Dutch had been taken to the planet at some time in the past as stated in the commentary but those plans were dropped along with Danny Glovers character reappearing.
In the scene with the booby trap, grenades do not detonate immediately after the pin is pulled and/or the handle released. Their fuse typically burns for several seconds so there is time to throw them and to reach their target.